Patent US3215875A successfully refreshed from Google Patents.
US3215875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine
Assignee: Controls Company of America
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Filing: 1962-09-27
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Granted: 1965-11-02
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Expires: 1982-09-27
Abstract
No abstract record available.
Inventors
- 👤 Latta Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:06
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A PERMANENT MAGENT MOTOR THE COMBINATION OF, PERMANENT MAGNET MEANS PROVIDING CIRCUMFERENTIALLY SPACED AREAS OF A MAGNETIZATION, A CORE STRUCTURE, SAID MAGNET MEANS AND SAID CORE STRUCTURE SUPPORTED FOR RELATIVE ROTATIONAL MOVEMENT THEREBETWEEN, SAID CORE STRUCTURE INCLUDING MEANS SPACED CIRCUMFERENTIALLY ON SAID CORE STRUCTURE WITH THE SPACING THEREBETWEEN BEING EQUAL TO THE SPACING BETWEEN SAID SPACED AREAS OF MAGNETIZATION AND OPERATIVE WHEN SAID MOTOR IS DE-ENERGIZED TO POSITION SAID CORE AND MAGNET MEANS IN A PREDETERMINED RELATIONSHIP EFFECTIVE TO EVENLY DISTRIBUTE THE TRANSFERENCE OF MAGNETIC FLUX BETWEEN SAID SPACED AREAS OF MAGNETIZATION AND SAID CORE AND ACHIEVE A RETARDING FORCE IN OPPOSITION TO RELATIVE ROTATIONAL MOVEMENT BETWEEN SAID MAGNET MEANS AND SAID CORE STUCTURE WHEN SAID MOTOR IS DE-ENERGIZED.
Claim 2
Dependent Claim
120 words
IN A PERMANENT MAGENT MOTOR THE COMBINATION OF, PERMANENT MAGNET MEANS PROVIDING CIRCUMFERENTIALLY SPACED AREAS OF A MAGNETIZATION, A CORE STRUCTURE, SAID MAGNET MEANS AND SAID CORE STRUCTURE SUPPORTED FOR RELATIVE ROTATIONAL MOVEMENT THEREBETWEEN, SAID CORE STRUCTURE INCLUDING MEANS SPACED CIRCUMFERENTIALLY ON SAID CORE STRUCTURE WITH THE SPACING THEREBETWEEN BEING EQUAL TO THE SPACING BETWEEN SAID SPACED AREAS OF MAGNETIZATION AND OPERATIVE WHEN SAID MOTOR IS DE-ENERGIZED TO POSITION SAID CORE AND MAGNET MEANS IN A PREDETERMINED RELATIONSHIP EFFECTIVE TO EVENLY DISTRIBUTE THE TRANSFERENCE OF MAGNETIC FLUX BETWEEN SAID SPACED AREAS OF MAGNETIZATION AND SAID CORE AND ACHIEVE A RETARDING FORCE IN OPPOSITION TO RELATIVE ROTATIONAL MOVEMENT BETWEEN SAID MAGNET MEANS AND SAID CORE STUCTURE WHEN SAID MOTOR IS DE-ENERGIZED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |